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Usage of Telematics Data in Advance Powertrain Development

Honda Cars India Pvt Ltd-Anurag Anurag, Mohit Singhal, Isao Chiba, Kouji Okayasu
Honda Cars India Pvt, Ltd.-Shubham Garg
  • Technical Paper
  • 2019-28-2438
To be published on 2019-11-21 by SAE International in United States
To achieve accuracy in model development with large scale customer actual data in low cost and limited time usage of telematics system was adopted. Honda’s OBD II diagnostic connecting device Honda Connect was used as transceiver for this telematics system which was used as an accessory in Honda vehicles. Data collected with this device with large sample size and regional diversity across India was used in product development for Honda System. Control system development for BSVI vehicles, Idle start stop hardware specificaton selection and Battery electric vehicle target range study was done with Honda Connect Data.
 

J1979-DA, Digital Annex of E/E Diagnostic Test Modes

Vehicle E E System Diagnostic Standards Committee
  • Ground Vehicle Standard
  • J1979DA_201905
  • Current
Published 2019-05-08 by SAE International in United States

On-Board Diagnostic (OBD) regulations require passenger cars, and light and medium duty trucks, to support communication of a minimum set of diagnostic information to off-board “generic” test equipment. This document specifies the diagnostic data which may be required to be supported by motor vehicles and external test equipment for diagnostic purposes which pertain to motor vehicle emission-related data. SAE J1979 was originally developed to meet U.S. OBD requirements for 1996 and later model year vehicles. ISO 15031 5 was based on SAE J1979 and was intended to combine the U.S. requirements with European OBD requirements for 2000 and later model year vehicles.

 

CAN Bus Message Electrical Signatures for Automotive Reverse Engineering, Bench Marking and Rogue ECU Detection

Warwick Control Technologies, Ltd.-Christopher Quigley, David Charles, Richard McLaughlin
Published 2019-04-02 by SAE International in United States
There are many applications in which you may need to reverse engineer the Controller Area Network (CAN), e.g.: Automotive competitor analysisTelematics applications such fleet managementDisabled driver applicationsThe typical reverse engineering process is concerned with moving a sensor and watching the CAN bus for message changes. For example, wind down a door window and see if this kicks off changes in CAN message data.Many CAN buses have many messages originating from many Electronic Control Units (ECUs). This means it is difficult to watch all of them at the same time. It would be far easier if you could simply watch a smaller number of CAN messages to observe changes by isolating the ECUs the messages originate from.This paper describes a process that allows the user to identify which CAN messages are transmitted by a particular ECU. This is achieved by getting the electrical signature of each CAN message and matching known CAN messages with unknown ones. Therefore, the transmitting ECU of the unknown CAN messages can be determined.The method for determining which Identifiers come from a…
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Effects of Dual Port Injection and Direct-Injection Technology on Combustion Emissions from Light-Duty Gasoline Vehicles

Southwest Research Institute-Robert Fanick, Svitlana Kroll, Andre Swarts, Shraddha Quarderer
Published 2019-04-02 by SAE International in United States
Dual injection fuel systems combine the knock and fuel economy benefits of gasoline direct injection (GDI) technology with the lower particulate emissions of port fuel injection (PFI) systems. For many years, this technology was limited to smaller-volume, high-end, vehicle models, but these technologies are now becoming main stream. The combination of two fuel injection systems has an impact on the combustion emission composition as well as the consistency of control strategy and emissions. Understanding the impact of these changes is essential for fuel and fuel additive companies, automotive companies, and aftertreatment developers.This paper describes the effects of dual injection technology on both regulated and non-regulated combustion emissions from a 2018 Toyota Camry during several cold-start, 4-bag United States Federal Test Procedure (FTP) cycle. Data from the Controller Area Network (CAN) was acquired through the on-board diagnostic (OBD) connector to determine the injection strategy for a 2018 Toyota Camry with a dual injection fuel system. The regulated and non-regulated emissions were also compared to 2017 Toyota Camry emission results with PFI. These vehicles were tested both…
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Objectified Drivability Evaluation and Classification of Passenger Vehicles in Automated Longitudinal Vehicle Drive Maneuvers with Engine Load Changes

FEV Europe GmbH-Stefan Tegelkamp, Christopher Schmidt, Henning Roehrich, Martin Nijs, Johannes Scharf
RWTH Aachen University-Daniel Guse, Christian Heusch, Stefan Pischinger
Published 2019-04-02 by SAE International in United States
To achieve global market and brand specific drivability characteristics as unique selling proposition for the increasing number of passenger car derivatives, an objectified evaluation approach for the drivability capabilities of the various cars is required. Thereto, it is necessary to evaluate the influence of different engine concepts in various complex and interlinked powertrain topologies during engine load change maneuvers based on physical criteria. Such an objectification approach enables frontloading of drivability related engineering tasks by the execution of drivability development and calibration work within vehicle subcomponent-specific closed-loop real-time co-simulation environments in early phases of a vehicle development program. So far, drivability functionalities could be developed and calibrated only towards the end of a vehicle development program, when test vehicles with a sufficient level of product maturity became available. The resulting compaction and parallelization of the calibration work to meet the emissions, on-board diagnostics as well as the drivability requirements drastically reduces development costs and time.This article presents an objectified drivability evaluation and classification approach for passenger cars, which is based on physical criteria, developed at…
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Security Mechanisms Design of Automotive Gateway Firewall

Tongji University-Feng Luo, Shuo Hou
Published 2019-04-02 by SAE International in United States
Automotive security has become one of important topics in recent years under new automotive Electronic and Electrical Architecture (EEA). With the development of Intelligent Connected Vehicle (ICV), it has become possible to hack an automotive through in-vehicle networks. The introduction of Information Communications Technology (ICT) brings more risk threats to automotive. Researchers have shown that an attacker can easily tamper with many automotive functions via On-Board Diagnostic II (OBD-II) or In-Vehicle Infotainment (IVI). In order to protect automotive against malicious attacks, automotive security risks were analyzed and then security mechanisms based on network firewall were designed in this paper. Automotive network firewall is a security system that monitors and controls incoming and outgoing network traffics of automotive based on predetermined security rules. The main functions of network firewall include packet filter, anti-DoS and access control. Because of deferent security requirements of in-vehicle networks, CAN/FD and Ethernet were divided into two domains respectively. Packet filter mechanisms were designed to monitor CAN/FD, in which security level and time delay were considered. Ethernet firewall mechanisms were designed based…
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Diagnostic Communication with Road-Vehicles and Non-Road Mobile Machinery

Softing Automotive Electronics GmbH-Peter Subke
  • Book
  • R-474
Published 2019-03-01 by SAE International in United States
Diagnostic Communication with Road-Vehicles and Non-Road Mobile Machinery examines the communication between a diagnostic tester and E/E systems of road-vehicles and non-road mobile machinery such as agricultural machines and construction equipment. The title also contains the description of E/E systems (control units and in-vehicle networks), the communication protocols (e.g. OBD, J1939 and UDS on CAN / IP), and a glimpse into the near future covering remote, cloud-based diagnostics and cybersecurity threats.
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Permanently or Semi-Permanently Installed Diagnostic Communication Devices

Vehicle E E System Diagnostic Standards Committee
  • Ground Vehicle Standard
  • J3005-1_201902
  • Current
Published 2019-02-21 by SAE International in United States
The scope of the document is to define communication best practices in order to minimize problems for the vehicle owner when installing equipment which has a permanently or semi-permanently diagnostic CAN communication device connected to the SAE J1962 connector, or hardwired directly to the in-vehicle network.
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OBD Traceability Matrix

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939-90_201902
  • Current
Published 2019-02-05 by SAE International in United States

This Information Report is intended to supplement the J1939 documents by offering the application of SAE RP J1939 to OBD data communications in a form that can be sorted and searched for easier use. It is NOT intended as a substitute for the actual regulations and standards documents, and any discrepancies between this document and the published documents must be resolved in favor of the published documents.

 

Capacitive Pressure Sensor System and Packaging

  • Magazine Article
  • TBMG-33693
Published 2019-02-01 by Tech Briefs Media Group in United States

Pressure sensors play an important role in engine maintenance and monitoring systems by diagnosing problems before they happen. To capture the most accurate data, however, these sensors must be placed directly on an engine. In order to withstand extreme temperature and vibration, traditional pressure sensor technologies are bulky and complex, lacking the onboard control of microsystem technologies. Glenn's new capacitive pressure sensor system and packaging is the first of its kind to achieve high-temperature capability while maintaining miniaturization.